diff --git a/lib/outlook_web/components/core_components.ex b/lib/outlook_web/components/core_components.ex
index 3e36394..60effc3 100644
--- a/lib/outlook_web/components/core_components.ex
+++ b/lib/outlook_web/components/core_components.ex
@@ -261,6 +261,7 @@ defmodule OutlookWeb.CoreComponents do
   attr :multiple, :boolean, default: false, doc: "the multiple flag for select inputs"
   attr :rest, :global, include: ~w(autocomplete disabled form max maxlength min minlength
                                    pattern placeholder readonly required size step)
+  attr :class, :string, default: "", doc: "optional additional classes"
   slot :inner_block
 
   def input(%{field: {f, field}} = assigns) do
@@ -326,7 +327,8 @@ defmodule OutlookWeb.CoreComponents do
           input_border(@errors),
           "mt-2 block min-h-[6rem] w-full rounded-lg border-zinc-300 py-[7px] px-[11px]",
           "text-zinc-900 focus:border-zinc-400 focus:outline-none focus:ring-4 focus:ring-zinc-800/5 sm:text-sm sm:leading-6",
-          "phx-no-feedback:border-zinc-300 phx-no-feedback:focus:border-zinc-400 phx-no-feedback:focus:ring-zinc-800/5"
+          "phx-no-feedback:border-zinc-300 phx-no-feedback:focus:border-zinc-400 phx-no-feedback:focus:ring-zinc-800/5",
+          @class
         ]}
         {@rest}
       ><%= @value %></textarea>